Gaming Console Wireless Protocol TDMA Frequency Hopping
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Solution Overview
Problem
Existing wireless gaming controllers are expensive and do not provide a robust connection due to interference, with high latency and limited ability to support multiple devices and new functionalities, necessitating a cost-effective wireless protocol that minimizes latency and enables simultaneous communication of voice and data.
Innovation Solution
A wireless protocol using a Time Division Multiple Access (TDMA) system with frequency hopping spread spectrum, where data and voice packets are transmitted in specific time slots with error correction, allowing multiple devices to communicate simultaneously and supporting retransmissions for robustness and minimal latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless communication is used to eliminate cabling, then ease of operation is improved, but reliability deteriorates due to interference and connection robustness issues
Solution Approach 1:
The patent applies parameter changes by implementing frequency hopping across multiple channels (e.g., 79 channels in 2.4 GHz band) to dynamically avoid interference. The system changes transmission parameters including frequency, time slot allocation, and power levels to maintain reliable communication in wireless environment
Solution Approach 2:
The patent uses copying through packet retransmission mechanisms. Data packets are copied and retransmitted multiple times across different time slots and frequencies to ensure reliable delivery. The host and controller both send and receive packets, creating redundant copies to overcome wireless interference
2Reliability
If existing wireless protocols are used, then wireless communication is achieved, but latency increases and responsiveness deteriorates
Solution Approach 1:
The patent implements periodic action through structured time-division multiplexing where communication occurs in regular periodic frames. Each frame contains specific sub-frames for data transmission, voice transmission, and acknowledgment. This periodic structure enables predictable latency and real-time responsiveness for gaming applications
Solution Approach 2:
The patent applies preliminary action by pre-allocating time slots and frequency channels for different communication purposes before actual data transmission. The TDMA framework pre-defines when data packets, voice packets, and acknowledgments will be transmitted, eliminating negotiation overhead and reducing latency
3Adaptability or versatility
If wireless communication supports multiple devices, then adaptability is improved, but device complexity increases due to protocol requirements
Solution Approach 1:
The patent applies segmentation by dividing the communication medium into distinct time slots and frequency channels. Each wireless device is assigned specific time slots for transmission, and the protocol segments data into structured packets with specific formats. This segmentation enables multiple devices to share the wireless medium without requiring complex peer-to-peer coordination
Solution Approach 2:
The patent implements universality through a standardized packet structure that can carry different types of data (game control data, voice data, acknowledgment data). The same TDMA protocol framework and packet formats support multiple device types and communication modes, reducing the need for device-specific protocol implementations
4Reliability
If error correction is implemented in wireless transmission, then reliability is improved, but loss of time increases due to processing overhead
Solution Approach 1:
The patent applies partial action by implementing selective error correction and retransmission. Not all packets require full error correction processing - the system uses acknowledgment packets to identify which data packets need retransmission. This partial approach applies error correction only when necessary, reducing overall processing time while maintaining reliability
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The protocol provides a cost-effective, robust, and low-latency solution for wireless communication between gaming consoles and accessories, enabling simultaneous communication of multiple devices and supporting new functionalities with minimal interference.
Implementation Method 1
A wireless protocol using a Time Division Multiple Access (TDMA) system with frequency hopping spread spectrum
Data Source
AI summary
Methods of wireless communication between a gaming console and a wireless accessory using a protocol. The protocol is used in a TDMA frequency hopping spread spectrum system to enable simultaneous communication of voice and data between a plurality of wireless accessories and the gaming console. The protocol provides specific time slots for upstream and downstream transmissions, as well as a retransmission time slots to enable a robust environment with minimal latency.